42123340100 has 36 divisors (see below), whose sum is σ = 96218581200. Its totient is φ = 15962528160.

The previous prime is 42123340001. The next prime is 42123340121. The reversal of 42123340100 is 104332124.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11083190 + ... + 11086989.

Almost surely, 2^42123340100 is an apocalyptic number.

It is an amenable number.

42123340100 is an abundant number, since it is smaller than the sum of its proper divisors (54095241100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42123340100 is a wasteful number, since it uses less digits than its factorization.

42123340100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22170212 (or 22170205 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42123340100 its reverse (104332124), we get a palindrome (42227672224).

The spelling of 42123340100 in words is "forty-two billion, one hundred twenty-three million, three hundred forty thousand, one hundred".